The program is endorsed by the Georges River Combined Councils Committee (GRCCC), which is comprised of nine government councils, and community members from organisations including the SES and corrective services.

Riverkeeper co-ordinator Tony Wales said even though the process of cleaning the banks of Chipping Norton lakes and surrounding parklands had been on going, there still was work to do.

"We're in there every one to two weeks, we remove rubbish from the foreshores and banks of the rivers," he said.

"A lot of rubbish gets caught in the reed beds and piles up, we collected all forms of plastic, in particular plastic bottles and left over packaging from TVs and fridges.

"We are finding that littering and illegal dumping are the biggest problems, especially along the waterfronts and parks."

Mr Wales said the amount of rubbish had declined this year.

"There have been significant changes in our catchment this year, we only collected 115 tonnes, it was double that last year," he said.